Aten CS1708A-AT-E - 8-Port - PS/2-USB - VGA - KVM Switch - with Daisy-Chain Port One USB-PS/2 console controls up to 8 computers - Daisy-chain up to 31 additional units - control up to 256 computers from a single console - Front accessible USB port allows each computer to access USB peripherals - Dual Interface - supports computers and console with PS/2 or USB keyboards and mice - Multiplatform support - Windows, Linux, Mac and Sun - Video Dyna Sync(TM) - stores the console monitor\'s EDID (Extended Display Identification Data) to optimize display resolution - Supports USB keyboards for PC, Mac and Sun - Auto PS/2 and USB interface detection - USB / PS/2 keyboard and mouse emulation - computers boot even when the console focus is elsewhere - Superior video quality - up to 2048 x 1536; DDC2B - No software required - convenient computer selection via front panel pushbuttons, hotkeys and multilingual on-screen display (OSD) menus - Auto-senses station\'s position on daisy-chained installations; no need for manual dip switch setting; front panel led indicates station\'s position - Port names automatically reconfigured when station sequence is changed - Two level password security; only authorized users view and control computers; up to four users and an administrator with separate profiles for each - Auto Scan feature for monitoring user-selected computers - Broadcast Mode - operation simultaneously performed on all selected computers... etc - Hot pluggable - add or remove computers without having to power down the switch - Buzzer on/off via hotkey and OSD - Firmware upgrades to all the chained KVM switch at the same time via the daisy-chain cable - Rack mountable in 19\" system rack (1U) The USB peripheral function only works with USB cable set connections. It will not work with PS/2 cable set connections.